Bella Swan struggles with her changing identity and tries to find solace in her friendship with Jacob Black, who eventually realizes his hidden heritage as a werewolf and is drawn into a forbidden romance with Bella. As a new vampire, Edward Cullen returns to battle a group of evil vampires led by Victoria, who is determined to destroy Bella and the Cullens. With danger lurking at every turn, Bella eventually chooses to make the ultimate sacrifice to protect those she loves, uncovering a shocking revelation about her destiny.